My Nintendo DS work
I have been playing around with the ROM files of Nintendo DS games ever since I bought one and ‘accidentally’ acquired an R4 cartridge for it.
There are plenty of tools out there which will let you look through and extract the files from within an NDS ROM, but I won’t be hosting any on here for obvious reasons 🙂
Music hacking on the Nintendo DS
This guide was written back in 2008 and it covers my various methods to extract and then convert the music files found inside Nintendo DS games to work with the Open ModPlug Tracker. I used to post the current ones on the old EmuParadise forum back in the day.
However, after EmuParadise was closed down due to offering NDS ROMs (summer 2018), all of my music rips that you could download went offline at the same time.
I still have copies of them, but it’s just too much hassle to re-upload them all and, probably, have a take-down request appear in my email.
Other non-musical things that I’ve found
The following are just some examples of what I’ve found under my NDS magnifying glass:-
a) In the 1000 Crosswords game, all of the completed crossword layouts and the clues are stored as plain text files. One for the solution and another for the clues.
b) In another crosswords-themed game – CrossworDS – the clues and answers are stored in a single text file for each of the languages supported by the game.
c) All of the possible answers available for Countdown are included as CSV files – including separate ones for the profanity-checking side of things.
d) A lot of NDS games were created using the scripting language Lua. A selection of these games didn’t encrypt/protect the Lua script files inside the ROM, so they are all there and can be opened using any Notepad equivalent. Some of the titles are: Chocolatier, Wedding Dash and WinX BelieviX.
e) The game Princess Maker 4 DS – Special Edition (JP) has the full C source code to the game inside the ROM.
Note: I didn’t discover this last one, but it was mentioned in passing on the GBA ROM Hacking forum.
f) The Are You Smarter Than A 10 Year Old (aka Are You Smarter Than A 5th Grader in the US) games have all of the questions and answers stored as a plain text file inside the ROM.
So I converted the raw data into a better looking Excel document.